The category B3 licence does not include any A subcategory. Nevertheless, this does not prevent
the B3 licence holder from releasing maintenance tasks typical of the A1.2 subcategory for
piston-engine non-pressurized aeroplanes of 2000 Kg MTOM and below, within the limitations
contained in the B3 licence.
A category B3 aircraft maintenance licence shall permit the holder to issue certificates of
release to service and to act as B3 support staff for :
- maintenance performed on aeroplane structure, powerplant and mechanical and electrical
- work on avionic systems requiring only simple tests to prove their serviceability and not